कामरूप व वर्मन वंश का संस्थापक कौन था?

पुष्य वर्मन

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Hologram-

Three-dimensional view of an object

According to Huygen’s principle of secondary wavelets each particle at a wavefront-

Behaves as a new light source

A shift of an interference pattern with blue light is observed when a colorless thin paralleled film is introduced in the path of the refracted beam from one half of the biprism. If the colorless film is replaced by a red film of the same thickness and refractive index the shift-

Increases

मेवाड़ के गुहिलौत राजवंश के शासक रत्न सिंह को पराजित कर मेवाड़ को दिल्ली सल्तनत में किसने मिलाया था?

1303 ई. में अलाउद्दीन खिलजी ने

Human ears cannot detect the sounds of wavelength-

100m

The number of basic SI units-

7

Infrared photography is based which of the following principle?

The peak of maximum radiation varies with the temperature emitting IR

The phenomenon associated with periscope is-

Total internal reflection

At 27deg c longitudinal wave in which medium Will have the maximum velocity?

Air

The resolving power of a lens is-

Its ability to separate the images of two points that are close together 

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